Apparatus for heating, cooling, and pasteurizing liquids.



No. 890,684. PATENTED JUNE 16, 1908. J. F. MOUL.

APPARATUS FOR HEATING, COOLING, AND PASTEURIZING LIQUIDS.

APPLICATION FILED HAYS, 1907.

2 SHEETS-BHEBT 1.

No. 890,684. PATENTED JUNE 16, 1908. J. P. MOUL. APPARATUS FOR HEATING,COOLING, AND PASTEURIZING LIQUIDS.

APPLICATION FILED MAY 9, 1907.

2 SHEETS-SHEET 2.

' burg, Ohio,

' fluid, whereby the end of the same, being, in its passage, subing amodified form the fluld contained in the trough 2 and jacket The tableis,

UNITED STATES PATENT OFFICE.

JOHN F. MOUL, OF OSNABURG, OHIO, ASSIGNOR OF ONE-HALF TO FRANK TYSON,

OF CANTON, OHIO.

APPARATUS FOR HEATIN G, COOLING, AND PASTEURIZIN G LIQUIDS;

Specification of Letters Patent.

Patented June 16, 1908 Application filed May 9, 1907. Serial No.372,836.

To all whomit may concern:

Be it known that I, JoHN F. MoUL, a citizen of the United States,residing at Osnahave invented certain Improvements in Apparatus forHeating, Cooling, or Pasteurizing Liquids, of which the following is aspecification.

The object of my invention is to provide apparatus for the rapid andeffective heating, cooling, or asteurization of milk or other liquids,an object which 1 attain in the man ner hereinafter set forth, referencebeing had to the accompanying drawings, in which Figure 1 isalongitudinal sectional View of pasteurizing apparatus constructed inaccordance with my invention; Fig. 2 is a trans- I verse section of thesame, on the line aa, f Fig. 1; Fig. 3 is a sectional plan view on the Iline bb, Fig. 2, and Fig. 4 is a view illustratof the apparatus.Referring in the first instance to Figs. 1, 2 and 3 of the drawing, 1represents aninclined table, shelf, trough or platform (hereinafter, forconvenience, referred to as a table) which is provided at its upper endwith a trough 2 having triple walls providing an outer chamer 5 and aninner assage 3, the latter receiving from a funnel 4 the milk or otherliquid to be treated, this liquid being hereinafter, for convenience,referred to as milk. The outer chamber 5, together with the trough 2,contains hot or cold water, or other preliminary heating or cooling ofthe milk can be effected, the s ace between the inner and intermediatewal s of the trough providing a contracted assage through which the milkis caused to iibw in a thin film'and in which, during its passage, it issubjected upon both sides to the action of 5. The milk thus subjected topreliminary heating or cooling is discharged over the upper edge of thetrough onto the up er end of the table 1 and flows, still in a thin 1m,down said table and into a trough 6 at the lower jected to the influenceof fluids which are contained in a jacket 7 beneath the table 1 and arecaused to circulate through said jacket in the mannerhereinafterdescribed.

by preference, provided with a protective hood 9, and between the tabland the hood operates an endless belt or apron 10 mounted upon suitablesupporting ends of the table and provided with transverse slats 12,which, in traversing the lower run of the belt are in contact with thesurface of the table 1 and thus serve not only to regulate the rate offlow of the milk over said table 1 but also to prevent said milk fromadhering to the table andbecoming burned or scorched while traversingthese portions of the table which are subjected to heat.

In the ap aratus shown in the drawing the acket 1 is ivided by suitablepartitions 13 Into four chambers, 14, each of these chambers is againsub-divided by partitions 19 and 20 into a series of trans- 22,communicating with each other at one end around the ends of theshorttransverse partitions 20, the opposite end of each passage21communicating, through a short branch, with a manifold pipe 23, and acorresponding end of each assa 'e 22 communicating, through a like rancwith a manifold pipe 24, whereb fluid supplied by the pipe 23 is conveyeto each of the passages 21 of that section of the jacket correspondingto said ipe,while the pipe 24 corresponding 'to said 15, 16 and 17, and

fluid after it has traversed'the passages 21 and 22. r

In pasteurizing milk or other liquids it is preferable to first raduallyheat the same and then to gradual y cool it, and in order to efl'ectthis result the passages of the upper section 14 of the jacket may besupplied w1th hot water, those of the section 15 with steam, those ofthe section 16 with cold water, and

those of the section 17 with chilled brine, the

arrangement of pipes, and passageswhich I have shown PIOVldlIlg for asubstantially unlform heating or cooling of the table throughout theextent of each section of the jacket, although, if desired, the heatingor cooling agent may pass continuously from one end of the section tothe other-in azigzag or circui- I tous course by providin the ipe 23with a single branch at one en of t e sectlon and the pipe 24 with asingle branch at the opposite end of the section. v

In cases where the heatin or cooling only 1 of the liquid is to beeffected the jacket wi I )f course, be supplied only with heating orcooling fluid, an

, mg circulation o the heating or cooling a ent beneath the same in themanner descri ed. In the apparatus shown inFig. 4 also, the preliminaryheater or cooler is dispensed with, the mil being fed directly from thetrough or funnel 4 onto the u per end of the up er table 1 and passingom the lower en of the same onto the upper end of the lower table 1 fromwhose lower end it is discharged into the receiving trough 6, each tablebeing provided with a protecting hood 9.

I claim 1. In apparatus for heating or cooling li uids, the combinationof a table over whic the liquid is caused to flow by (gravity, means forheating or cooling sai table, means for supplying a shallow stream ofliquid to the head of the table and an endless belt having slats movinin the direction'of the flow of the liquid an serving to regulate saidflow.

2. In apparatus for heating or cooling li uids, the combination of atable over whic the liquid 'is caused to flow by (gravity, means forheating or cooling sai table, means for supplying a shallow stream ofliquid to the head of the table and an endless belt having slats movinin the direction of the flow of the liquid an serving to regulate saidflow, said slats contactin with the surface of the table so as to act aso as scrapers therefor.

3. In apparatus forheating or cooling li uids, the combination of atable over whic the liquid is caused to flow by gravity, means forheating or cooling the table, and a reliminary heater or cooler fromwhich the iquid is discharged onto the table, said preliminary heater orcooler consisting of a triple walled trough roviding a passage'for theliquid with cham ersfor the heating or cooling agent on each sidethereof whereby the liquid is treated in the form of a thin film, and isdischarged in a shallow stream over the head of the table.

4. In apparatus for heating or cooling c uids, the combination of atable over whi the liquid is caused to flow by gravity, means forregulating the flow of liquid over sai dtable, means for heating orcooling the table, and a preliminary heater or cooler from which theliquid is discharged onto the table, said preliminary heater or coolerconsisting of a triple walled trough roviding a passage for the liquidwith cham ers for the heating or cooling agent on each side thereofwhereby the liquid is treated in the form of a thin film, andis'discharged in a shallow stream over the head of the table.

5. Inapparatusfor asteurizingli uids,the combination of a tab e overwhich the liquid is caused to flow by avity, means for regulating theflow of iquid over said table, means for supplyin a shallow stream ofliquid to the head of 516 table, 'means for heat in that portion of thetable which first receives the liquid, and means for cooling thefollowingportion of the table.

6. In apparatus for pasteurizin combination of a table over whic the liuid is caused to flow by gravity, an endless elt dis osed above saidtable and having slats which regulate the flow of liquid over the table,means for sup lying a shallow stream of liquid to the head of the table,means for heating that portion of the table which first receives theliquid, and means for cooling the following portion of the table.

7. Pasteurizing apparatus in which are combined a table over which theliquid is caused to flow by (gravity, an endless belt disposed above saitable and having slats which re ulate the flow of liquid over the same,an also contact with the table and act as scrapers, means for supplyin ashallow stream of liquid to the head 0% the table, means for heatingthat portion of the table which first received the l quid, and means forcooling the following portion or liquids the the table.

8. In apparatus for heating or cooling li uids, the combination of ajacketedtab e over which the liquid is caused to flow by gravity, meansfor dividing said jacket into chambers, means for suplp ying the heatingor cooling agent to said c ambers independently, means for supplyingliquid in a shallow stream to the head of the table and means forrestricting the rate of the flow of the liquid over the table.

9. n apparatus for heating or cooling liquids, the combination of ajacketed table over which the liquid is caused to flow, partitionswhereby said jacket is divided into a succession of independent flowpassages, means for supplying heating or cooling liquid to said passagesindependently, means for sup lying liquid in a shallow stream to the heaof the table and means for restricting the rate of the flow of theliquid over the table. r 1 10. In apparatus for heating or coolingliquids, the combination. of aacketed tablc,

over which the liquid is caused to flow by pendently.

, 890,684 3 gravity, one or more partitions whereby said J In testimonywhereof, I have signed my acket is divided into a plurality of chambers,name to this specification, in the presence of other partitions wherebyeach chamber is ditwo subscribing Witnesses.

vide mto a succession of independent flow JOHN F. MOUL. 5 passages, andmeans for supplying a heating Witnesses:

or cooling agent to said flow passages inde- CLAUDE CLENDENING,

WM. SIMPSON.

